Question

What is the Science behind Tears ?

Answer 1

Explanation:

To accomplish this feat, the sensory nerves in your cornea communicate this irritation to your brain stem, which in turn sends hormones to the glands in the eyelids. These hormones cause the eyes to producetears, effectively ridding them of the irritating substance. The third type oftears is emotional tears.

Answer 2

Answer:

When humans cry in response to stress, their tears contain a number of stress hormones and other chemicals. Researchers believe that crying could reduce the levels of these chemicals in the body, which could, in turn, reduce stress. More research is needed into this area, however, to confirm this.